timeStamp Event Property
Get the number of milliseconds since this document was loaded:
var n = event.timeStamp;
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The timeStamp event property returns the number of milliseconds from the document was finished loading until the specific event was created.
Not all systems provide this information, therefore, timeStamp may be not available for all systems/events.
|A Number, representing the number of milliseconds from the document was loaded until the event was created.
|DOM Level 2 Events
event.timeStamp is a DOM Level 2 (2001) feature.
It is fully supported in all browsers: